CVE-2013-1776 Privilege escalation in n/a
Local users with sudo permissions can hijack another terminal's authorization to escalate privileges when tty_tickets is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-1776?
CVE-2013-1776 is a medium-severity vulnerability in Apple Mac Os X, published on 8 Apr 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sudo 1.3.5 through 1.7.10 and 1.8.0 through 1.8.5, when the tty_tickets option is enabled, does not properly validate the controlling terminal device, which allows local users with sudo permissions to hijack the authorization of another terminal via vectors related to connecting to the standard input, output, and error file descriptors of another terminal. NOTE: this is one of three closely-related vulnerabilities that were originally assigned CVE-2013-1776, but they have been SPLIT because of different affected versions.
Weakness: CWE-264
Which versions are affected by CVE-2013-1776?
It affects 2 products.
Linux distribution packages (12)
sudo Red Hat:enterprise_linux:6::client | All versions | 0:1.8.6p3-7.el6 |
sudo-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:1.8.6p3-7.el6 |
sudo-devel Red Hat:enterprise_linux:6::client | All versions | 0:1.8.6p3-7.el6 |
sudo Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.6p3-7.el6 |
sudo-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.6p3-7.el6 |
sudo-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.6p3-7.el6 |
sudo Red Hat:enterprise_linux:6::server | All versions | 0:1.8.6p3-7.el6 |
sudo-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:1.8.6p3-7.el6 |
sudo-devel Red Hat:enterprise_linux:6::server | All versions | 0:1.8.6p3-7.el6 |
sudo Red Hat:enterprise_linux:6::workstation | All versions | 0:1.8.6p3-7.el6 |
sudo-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:1.8.6p3-7.el6 |
sudo-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:1.8.6p3-7.el6 |
Products include Apple Mac Os X, Todd Miller Sudo.
How do I fix CVE-2013-1776?
Apply the vendor's patch.
Is CVE-2013-1776 being exploited?
There is no known exploitation of CVE-2013-1776 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as DEBIAN-CVE-2013-1776, GHSA-wjjf-2f85-8256, RHBA-2013:0363.